Gemstone



FIG. 1 is a top view of a gemstone, showing the crown;

FIG. 2 is a bottom view thereof, showing the pavilion;

FIG. 3 is a side view thereof;

FIG. 4 is a perspective view thereof, looking upward toward the pavilion; and,

FIG. 5 is a perspective view thereof, looking downward toward the crown. 

CLAIM The ornamental design for the gemstone, as shown and described. 